Buffer Bug [2.5.67]

From: Udo A. Steinberg (us15@os.inf.tu-dresden.de)
Date: Sun May 04 2003 - 06:45:13 EST

Hello,

I've just hit the following bug with 2.5.67. Since 2.5.68 is already out and I
haven't had a chance to run it on that particular machine yet, it'd be good if
someone could comment on whether this is a known issue or maybe already fixed.

The machine in question is a Pentium-166 with a 100 MB SCSI Zip drive connected
to an Adaptec 2940 Ultra SCSI adapter. The file system on the zip disk is ext3.
The bug happened when the disk was mounted.

See kernel output below. The whole dmesg output is also available in case
someone is interested.

Regards,
-Udo.

EXT3 FS 2.4-0.9.16, 02 Dec 2001 on ide0(3,65), internal journal
buffer layer error at fs/buffer.c:127
Call Trace:
 [<c0143da8>] __wait_on_buffer+0xc8/0xd0
 [<c0115bb0>] autoremove_wake_function+0x0/0x40
 [<c01441cb>] __find_get_block_slow+0x2b/0xe0
 [<c0115bb0>] autoremove_wake_function+0x0/0x40
 [<c01453d2>] unmap_underlying_metadata+0x12/0x60
 [<c014592e>] __block_prepare_write+0x13e/0x4b0
 [<c01146e0>] __wake_up+0x20/0x50
 [<c01864be>] journal_stop+0x15e/0x1e0
 [<c0146460>] block_prepare_write+0x20/0x40
 [<c0178790>] ext3_get_block+0x0/0x70
 [<c0178d09>] ext3_prepare_write+0x89/0x1a0
 [<c0178790>] ext3_get_block+0x0/0x70
 [<c012b78d>] generic_file_aio_write_nolock+0x32d/0xa10
 [<c021e48f>] do_con_write+0x2bf/0x6f0
 [<c012bedd>] generic_file_write_nolock+0x6d/0x90
 [<c020fe94>] opost+0x94/0x190
 [<c029b04e>] sys_recvfrom+0x9e/0x100
 [<c029b091>] sys_recvfrom+0xe1/0x100
 [<c01143f0>] schedule+0x1b0/0x3c0
 [<c012d68b>] __get_free_pages+0x1b/0x70
 [<c012c09f>] generic_file_writev+0x2f/0x40
 [<c0143082>] do_readv_writev+0x142/0x260
 [<c0142c20>] do_sync_write+0x0/0xb0
 [<c0143239>] vfs_writev+0x49/0x50
 [<c01432aa>] sys_writev+0x2a/0x40
 [<c0108f17>] syscall_call+0x7/0xb

SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
sda: Write Protect is off
sda: Mode Sense: 25 00 00 08
sda: cache data unavailable
sda: assuming drive cache: write through
SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
sda: Write Protect is off
sda: Mode Sense: 25 00 00 08
sda: cache data unavailable
sda: assuming drive cache: write through
 sda: sda1
kjournald starting. Commit interval 5 seconds


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